It's arriving about two months later than originally scheduled (and didn't arrive in 2008 like Intel wanted), but X Server 1.6 has been officially released this afternoon and it wasn't 212 days late like the infamous X Server 1.4.1 release. X Server 1.6 introduces the server bits for Direct Rendering Infrastructure 2 (the 3D bits can already be found in Mesa and the Intel driver), X Input 1.5 with device properties, Predictable Pointer Acceleration, and RandR 1.3. Beyond those key features, there are also a number of bug-fixes, EXA improvements, and various other improvements.